Furnace of steam boilers



T.4CQLLIER FURNACE 'F $TEAM BOILERS 3 ,Shee ts-Sheat 1 Filed Sept 23.1922 T. COLLIER FURNACE 07F STEAM BOILERS Filed Sept. 23, 1922 3Sheets-Sheet? May 15, 1923. 1,455,429

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May153192i T. COLLIER FURNACE OF STEAM BOILERS Filed Sept. 23, 1922 3Sheets-Sheet 5 FIG.6.

Patented May 15, 1923. i

UNITED STATES PATENT oFF-icE.

THOMAS COLLIER, OF COLNE, ENGLAND.

FURNACE OF STEAM BOILERS.

Application filed September 23, 1922. Serial No. 590,12.

like body divided into a number of compart ments open at each end andadapted to be secured underneath the dead plate of the fire grate. Atthe front end is a steam pipe with nozzles or jets projecting into eachcompartment and at the rear end are two superposed deflecting platesarranged at diflerent angles, the upper plate advantageously beingcapable of having its position adjusted. The steam leaving each jetinduces a current of air through each compartment which is distributedto the best advantage underneath the grate, producing better combustionof fuel, reducing smoke and efl'ecting consider able economy in theconsumption of coal.

In the accompanying drawings Fig. l is a perspective view of a Bunsenblower constructed in accordance with this invention.

Fig. 2 is a side elevation partly in section.

Figs. 3, 4 and 5 are details of a modified construction in which theupper deflecting plate is made adjustable, and

Fig. 6 is a section showing the blower in position in a steam generatorof the Lancashire .type.

A' indicates the fan like body, B the steam pipe, and C and D the twodeflecting plates.

The body A is constructed from an upper portion and a lower portionsecured together by bolts (6 and it is separated into a number ofcompartments by partitions a which diverge as shown in Fig. 1. At thefront end of the body are two lugs a which support the steam pipe B andprojecting from the latter are a number of nozzles 72 one of which.enters each compartment. The lower por-' tion of the body is formed withgrooves a which rest on supporting bars a which we tend across theboiler flue below the fire grate (Fig. 6)., The deflecting plates C andare respectively attached toand formed in a piece with the lower portionof the body at the rear end and the plate C is arranged at a steeperangle than the plate D so that the air, or air and steam will issuethrough the upper aperture'at a steeper angle than the air, or air andsteam which issue through the lower aperture. In the modification shownin Figs. 3 and 5 the plate C is slidably mounted above the plate D andcan be secured in any adjusted position by a set screw 0. This,constructionenables air and steam to be directed moreto the front, ormore to the rear of the grate to suit any particular requirement.

What I claim as my invention and desire to secure by Letters Patent ofthe United States is 1. A Bunsen blower, adapted to be secured under thedead plate of a. furnace,

comprising a fanshaped body open at each I end and divided by partitionsinto a series of compartments which arewider at their outlets than attheirinlets, the bottom of the outlet end portion of the body beinginclined upwardly beyond the rear ends of the compartments, 2.deflecting .plarte secured over the inclined end portion and arranged ata steeper angle than it, and a steam pipe arranged crosswise of the openinlet end of the body and having a series of nozzles which project intothe compartments.

2. A Bunsen blower for use in connection with furnaces, steam generatorsand thelike comprising a fan like body open at each end the air inletopenings of and adapted to be secured underneath'the dead plate of thefire grate, a number of partitions situated in said body and separatingsame into a number of compartments which increase in width towards therear end ofthe body, the bottom of which inclines upwardly beyond theends of the compartments, a defleeting plate extending across the endsof the compartments above the inclined bottom portion and arranged to bemoved towards and away from said ends, means for securing the deflectingplate in its adjusted position, and a steam pipe adapted to be supportedacross the front end of the compartments and having a number of nozzlesone of which projects into each compartment.

In testimony whereof I affix my signature.

THOMAS COLLIER.

